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Cymraeg

Hieracium collection

Hieracium L. is a large, critical genus in Britain and Ireland, containing many hawkweeds which are closely related and difficult to identify. There are over 400 species in the British Isles, and a recent monograph has recently been published by Sell & Murrell (2006) Flora of Great Britain and Ireland, volume 4 (Cambridge University Press, Cambridge). Pilosella Hill. used to be treated as part of Hieracium but is now regarded as a distinct genus.

Identification requires an experienced botanist who specialises in Hieracium. Although many species can be named with experience in the field, it is often necessary to collect material to confirm identity by matching against known material held in herbaria. The main tool for studying the genus is therefore a herbarium collection.

A catalogue listing the 6,719 Hieracium specimens named to species from the British Isles has been compiled and gives brief details summarized from the labels. In many cases there is more detailed information available on the sheets themselves and in the museum’s collection database. We have approximately 700 additional specimens from the British Isles unconfirmed or as yet without names and these will be added to the database as and when named. We also hold c. 1000 specimens from Europe which require substantial taxonomic revision.

» Hieracium catalogue

The Hieracium collection is at least nationally important in its own right. Features of importance are: